544533421 has 2 divisors, whose sum is σ = 544533422. Its totient is φ = 544533420.

The previous prime is 544533401. The next prime is 544533433. The reversal of 544533421 is 124335445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272745225 + 271788196 = 16515^2 + 16486^2 .

It is a cyclic number.

It is not a de Polignac number, because 544533421 - 2⁵ = 544533389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544533401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272266710 + 272266711.

It is an arithmetic number, because the mean of its divisors is an integer number (272266711).

Almost surely, 2^544533421 is an apocalyptic number.

It is an amenable number.

544533421 is a deficient number, since it is larger than the sum of its proper divisors (1).

544533421 is an equidigital number, since it uses as much as digits as its factorization.

544533421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 31.

The square root of 544533421 is about 23335.2398959171. The cubic root of 544533421 is about 816.5977519153.

Adding to 544533421 its reverse (124335445), we get a palindrome (668868866).

The spelling of 544533421 in words is "five hundred forty-four million, five hundred thirty-three thousand, four hundred twenty-one".